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A spring balance carries a load, when th...

A spring balance carries a load, when the load is pulled aside so that the balance makes an angle of `30^@` with the vertical , the balance reads 4kg wt. What is the mass of the load.

Text Solution

Verified by Experts

As it is clear from figure,
`T=4kg, mg=? , theta=30^@`
OAB is a right angled triangle,
where `cos theta =(OA)/(OB)=(mg)/T`
`mg= T cos theta=4 cos 30^@=4 sqrt3/2=2sqrt3 kg`
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